我正在绘制共享相同 x 轴的两个子图,但是当我绘制时,我只看到第二个子图上的 x 轴刻度。如何使 x 刻度在两个子图上都可见?
另外,我想为两个子图设置 y 标签,但只有第二个子图可见。您能帮忙在两个子图上显示 y 标签吗?
下面是我的可重现代码。
#!/usr/bin/python3
import pandas as pd
desired_width = 1500
pd.set_option('display.width', desired_width)
import matplotlib.pyplot as plt
import numpy as np
df = pd.DataFrame([{'DATETIME': '2017-09-29 01:00,', 'Population': 1000, 'Temp': 90, 'State': 'California'},
{'DATETIME': '2017-09-29 01:00,', 'Population': 2000, 'Temp': 70, 'State': 'Illinois'},
{'DATETIME': '2017-09-29 01:00,', 'Population': 3000, 'Temp': 50, 'State': 'Georgia'},
{'DATETIME': '2017-09-29 02:00,', 'Population': 2000, 'Temp': 40, 'State': 'California'},
{'DATETIME': '2017-09-29 02:00,', 'Population': 6000, 'Temp': 20, 'State': 'Illinois'},
{'DATETIME': '2017-09-29 02:00,', 'Population': 4000, 'Temp': 30, 'State': 'Georgia'},
{'DATETIME': '2017-09-29 03:00,', 'Population': 3000, 'Temp': 40, 'State': 'California'},
{'DATETIME': '2017-09-29 03:00,', 'Population': 4000, 'Temp': 60, 'State': 'Illinois'},
{'DATETIME': '2017-09-29 03:00,', 'Population': 2000, 'Temp': 80, 'State': 'Georgia'}])
df.index = df['DATETIME']
df.index = (pd.to_datetime(df.index)).strftime("%m/%d %H:00")
fig, axes = plt.subplots(nrows=2, ncols=1, sharex=True)
df.groupby('State')['Population'].plot(kind='line', linestyle='--', alpha=0.5, marker='o', legend=True, ax=axes[0])
plt.ylabel('Pop')
df.groupby('State')['Temp'].plot(kind='line', linestyle='--', alpha=0.5, marker='o', legend=True, ax=axes[1])
plt.ylabel('Temp')
plt.tick_params(axis='both', which='both', labelsize=7)
plt.tight_layout()
plt.show()
当前图表输出: